Base | Representation |
---|---|
bin | 10011011010001111000010… |
… | …011000100101001001100001 |
3 | 102012020212212221012201212210 |
4 | 103122033002120211021201 |
5 | 42142113011433402041 |
6 | 501320251113512333 |
7 | 23660320344422664 |
oct | 2332170230451141 |
9 | 365225787181783 |
10 | 85365736231521 |
11 | 25222450693669 |
12 | 96a85504126a9 |
13 | 3882c53a276a5 |
14 | 1711a1babd6db |
15 | 9d085a951016 |
hex | 4da3c2625261 |
85365736231521 has 64 divisors (see below), whose sum is σ = 118485003571200. Its totient is φ = 54604159948800.
The previous prime is 85365736231499. The next prime is 85365736231621. The reversal of 85365736231521 is 12513263756358.
It is not a de Polignac number, because 85365736231521 - 225 = 85365702677089 is a prime.
It is not an unprimeable number, because it can be changed into a prime (85365736231621) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37424696901 + ... + 37424699181.
It is an arithmetic number, because the mean of its divisors is an integer number (1851328180800).
Almost surely, 285365736231521 is an apocalyptic number.
It is an amenable number.
85365736231521 is a deficient number, since it is larger than the sum of its proper divisors (33119267339679).
85365736231521 is a wasteful number, since it uses less digits than its factorization.
85365736231521 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5290.
The product of its digits is 27216000, while the sum is 57.
Adding to 85365736231521 its reverse (12513263756358), we get a palindrome (97878999987879).
The spelling of 85365736231521 in words is "eighty-five trillion, three hundred sixty-five billion, seven hundred thirty-six million, two hundred thirty-one thousand, five hundred twenty-one".
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